Add a Makefile

guix.scm

@@ -13,7 +13,7 @@
  (gnu packages pkg-config)
  (gnu packages sdl)
  (gnu packages video)
- (guix build-system cmake)
+ (guix build-system gnu)
  (guix build utils)
  (guix gexp)
  (guix git-download)
@@ -34,9 +34,13 @@
     (name "avp")
     (version (git-version source-dir))
     (source (local-file source-dir #:recursive? #t #:select? (git-predicate source-dir)))
-    (build-system cmake-build-system)
+    (build-system gnu-build-system)
     (arguments
-     (list #:tests? #f))
+     (list
+      #:tests? #f
+      #:make-flags #~(list "CC=gcc" (string-append "DESTDIR=" #$output))
+      #:phases
+      #~(modify-phases %standard-phases (delete 'configure))))
     (inputs
      (list ffmpeg mesa openal sdl2))
     (native-inputs